/**
 * 建造者模式
 * 
 * 工厂模式：为了创建对象实例或者类簇(抽象工厂),关心的是最终产出(创建)的是什么
 * 建造者模式：更关心创建对象的整个过程以及细节
 */
// 创建一位人类
var Human = function(param) {
    // 技能
    this.skill = param && param.skill || '保密';
    // 兴趣爱好
    this.hobby = param && param.hobby || '保密';
}

// 类人原型方法
Human.prototype = {
    getSkill: function() {
        return this.skill;
    },
    getHobby: function() {
        return this.hobby;
    }
};

// 实例化姓名类
var Named = function(name) {
    var that = this;
    // 构造器
    // 构造函数解析姓名的姓与名
    (function(name, that) {
        that.wholeName = name;
        if (name.indexOf(' ') > -1) {
            that.firstName = name.slice(0, name.indexOf(' '));
            that.secondName = name.slice(name.indexOf(' '));
        }
    })(name, that);
}

// 实例化职位类
var Work = function(work) {
    var that = this;
    // 构造器
    // 构造函数中通过传入的职位特征来设置相应职位以及描述
    (function(work, that) {
        switch (work) {
            case 'code':
                that.work = '工程师';
                that.workDescript = '每天沉醉于编程';
                break;
            case 'UI':
            case 'UE':
                that.work = '设计师';
                that.workDescript = '设计更似一种艺术';
                break;
            case 'teach':
                that.work = '教室';
                that.workDescript = '分享也是一种快乐';
                break;
            default:
                that.work = work;
                that.workDescript = '对不起，我们还不清楚您所选择职位的相关描述';
                break;
        }
    })(work, that);
};

// 更换期望的职位
Work.prototype.changeWork = function(work) {
    this.work = work;
}

// 添加对职位的描述
Work.prototype.changeDescript = function(sentence) {
    this.workDescript = sentence;
}

/**
 * 应聘者建造者
 * 参数 name：姓名（全名）
 * 参数 workd：期望职位
 */
var Person = function(name, work) {
    // 创建应聘者缓存对象
    var _person = new Human();
    // 创建应聘者姓名解析对象
    _person.name = new Named(name);
    // 创建应聘者期望职位
    _person.work = new Work(work);
    // 将创建的应聘者对象返回
    return _person;
}

var person = new Person('xiao ming', 'code');

console.log(person.skill);
console.log(person.name.firstName);
console.log(person.name.secondName);
console.log(person.work.work);
console.log(person.work.workDescript);

person.work.changeDescript('更改一下职位描述');
console.log(person.work.workDescript);
